Butt hinge



F. A. MYERS.

BUTT HINGE.

APPLICATION FILED DEC. 12. 1919.

1,409,461 Patented Mar- 14, 1922.

UNITED STATES PATENT OFFICE.

FRANK A. MYERS, OF PLAINVILLE, CONNECTICU'I, ASSIGNOB TO THE STANLEY WORKS, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

BUTT HINGE.

Specification of Letters Patent. Patented BI 14, 1922.

Application filed December 12, 1919. Serial No. 344,276.

To all 'wlwmz't may concern Be it known that I, FRANK A. MYERS, a citizen of the United States, and a resident of Plainville, county of Hartford, State'of Connecticut, have invented certain new and useful Improvements in a Butt Hinge, of which the following is a specification.

The object of the'present invention is .to provide simple and practical means for attaching ball bearings to a butt hinge.

"lheinvention is illustrated in the accompanying drawing wherein,

Fig. 1 is a front view of a butt embodying my invention. I

Fig. 2 is a sectional viewof the ball bearing attachment. t

Fig. 3 is a perspective view of the tube I for securing-the bearings in place, and

' i5, 25, as-clearly seen in Fig Fig. Lie a view similar to- Fig. *2 but illustrating another embodiment of the in vention.

In the drawing, a denotes one leaf having knuckles 1, 2 and 3, and b the other leaf with knuckles l1. and 12, the knuckles, as is usual, being ceive a'p'intle 0. 7 I I In Figs. lto 3 i 'clusive, .15 and 25 are ball bearing units, positioned at opposite ends of g one of the knuckles, in this instance, knuckle pair of ball races 26, bal

2. Eachfof these bearing units comprises a and a housing 28 of sheet metal spun about the races to secure them in assembled re.-'

lation. Thehousings which are properly finished to give a neat and pleasing'appean ance to the butt, terminate short of the under surface of each lower race so that the lower races ofunits 15 and 25 rest upon knuckles 2 and 12 rrespectivelyr The bearing units 15 and 25 are secured in place by a tube 30' positioned within the knuckle 2 and having its ends spun out or flared as at 31,32 to en- 9: 'ge and interlock with the-2bear1ng units By preference, the tube 30 is formed of sheet metal rolled over upon itself unt l its edges overlap as shown in full lines Fig. 3 reducing its diameter .50 that ltmay be read ly inserted in the knuckle and bearing units and thereafterit is ex anded by means of any suitable tool' unti it fits closely the knuckle and bearing'umts, when the ends of the tube are flared as indicated at.31, 32. The dotted lines of Fig. 3 show the shape of the tube when expanded.

centrally apertured to re .8 27 therebetween,

ufactured and easily assembled. A carpenter may take the leaves apart to attach the same to a casing and door without danger of misplacing or losing the parts of the bearings. The bearings will be effective to reduce friction irrespective of which leaf is attached to the door, as it will be readily seen that if the leaf 1) is attached to the door, the knuckle 11 is supported on the upper bearing unit 15,; and i the leaf a is attached to the door, the knuckle2 is supported by the lower unit 25. If, for any reason, it is desired to remove the attachment from the knuckle, this may be readily accomplished by merely cutting ofi one end of the tube 30.

In that embodiment shown in Fig. 4, a bearing unit 35 is held in place on the knuckle 2 by the tube 30 having spring fingers 36 theends of which are .rolled to form beads which spring into a groove 37 in the knuckle. With this construction, the

bearing unit 35may' bequickly attached to and removed from the knuckle. By preference, a bearing unit will be attached in a similar manner to one of the knuckles of the other leaf of thebutt so that either leaf may be attached to the door as in the preceding I embodiment.

While :the forms of the device herein shown and described are admirably adapted to; fulfil [the objects of the invention, it is to be understood that it is not intended to confine the invention to the embodiments shown and described herein, as it is susceptible I of embodiment; in various forms all coming Withinthescope of the claims which follow. I 1 I claim as my invention:

"1. A butt hinge including a pair of leaves upon one end and externally of one "of the knuckles and comprising a pair of ball races,

'' balls therebetween and-a housing spun about ing about said races for securin the same in assembled relation, and a tubu ar member within the bore of said knuckle and having its ends expanded over both of said bearing units.

4. A butt hinge including a'pair of leaves with inter-fitting knuckles having alined' bores, a pintle in said bores, a ball bearing upon each end ofone of the knuckles, and a split tubular member extending through and expanded into said knuckle and having its ends expanded into locking engagement with said bearing.

5. A butt hinge including a pair of leaves with inter-fitting knuckles having alined bores, a pintle in the bores, a ball bearing unit upon each end of one of the knuckles, and a tubular member extending through said knuckle and having its opposite ends expanded into locking engagement with said bearing, said tubular member being formed of sheet metal rolled upon itself with its edges overlapping and expanded in said knuckle substantially as described.

FRANK A. MYERS. 

